https://www.vox.com/science-and-health/2018/5/29/17386112/all-life-on-earth-chart-weight-plants-animals-pnas
Transpiration is a by‐product of opening stomatal pores H2O transport needs to be sufficient to keep stomata open Venation represents investment in H2O supply
Greek = “building with light” Autotroph = “self nourishing” Photoautotroph = “self nourishing with light” Photosynthesis is an energy pathway 2 linked reactions light reaction + Calvin cycle
1. Fixation: CO2 reacts with 5C molecule (RUBP) new 6C split into 2 acids (3C each) catalyzed by Rubisco enzyme 2. ATP and NADPH turn 3C acids into sugars reduction of acids 3. Some 3C sugars recycled to make RUBP (5C) one 3C sugar leaves to make glucose recycling needs ATP